Nice gif showing off inertial forces

Cool video

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Insane

I cannot comprehend how and why material can achieve consciousness.

We truly embody the awakening of the universe.

And thinking about this drives me insane.

There are actually three fake forces in a rotating frame

A fictitious force, pseudoforce, or inertial force is an apparant force that arises because of describing motion in a ‘non-inertial frame of reference’. ‘Non-inertial’ means that the frame doesn’t have constant velocity. A plane flying at constant speed is roughly ‘inertial’, an accelerating rollercoaster is not ‘inertial’.

The inertial forces make a rollercoaster fun and sickening. They toss you around. Inertial forces make your clothes dry in a centrifuge and kill you when you are in a car accident.

List of fake forces:

In a linear constant motion there are no fictitiuous forces. This frame is inertial.

In a linear accelerating frame you will feel one ‘fake force’

1. Linear fictitious force

This is the force that pushes you back into your seat when you are accelerating in a car.  In the image above you can see it at work.

In a rotating frame, that isn’t accelerating you will feel two forces:

1. Centrifugal force
2. Coriolis force

In an accelerating rotating frame you will find another force:

1. Centrifugal force
2. Coriolis force
3. Euler force

Centrifugal force

So the centrifugal force is that which makes the water go out of your cloths in a centrifuge. It is that what you feel when you take a quick turn on the road in a car.

Coriolis force

The Coriolis force is harder to notice. It becomes noticeable on a grander scale. For example, the Coriolis force is the reason why artillery will always deflect from their target if pointed straight at that target. The Coriolis force is why you can’t drop something in a mineshaft and make it reach the ground. The Coriolis force is the reason why the weatherpatterns turns clockwise and counterclockwise north and  south of the equator.

Euler force

The Euler force is a force that I didn’t know about. Basically, it is the force you feel when you getting pushed into your seat in an accelerating merry-go-round. It is basically analogous to the linear fake force that you can see in the image above. I don’t know of any interesting effects it produces.

Nice overview

1. The centrifugal force is parallel to the radius
2. The coriolis force is perpendicular to the velocity
3. The euler force is perpendicular to the radius.